Issue #50 fixed ~ adding validation command, in case of error view jumps to error

Default.sublime-commands

@@ -14,5 +14,9 @@
     {
         "caption": "Pretty JSON: JSON query with ./jq",
         "command": "jq_pretty_json"
+    },
+    {
+        "caption": "Pretty JSON: Validate",
+        "command": "pretty_json_validate"
     }
 ]

PrettyJson.py

@@ -77,6 +77,7 @@ class PrettyJsonBaseCommand(sublime_plugin.TextCommand):
             regions = [self.view.full_line(self.view.text_point(line, 0)), ]
             self.view.add_regions('json_errors', regions, 'invalid', 'dot',
                                   sublime.DRAW_OUTLINED)
+            self.view.show(regions[0])
             self.view.set_status('json_errors', message)
 
     def show_exception(self):
@@ -90,6 +91,25 @@ class PrettyJsonBaseCommand(sublime_plugin.TextCommand):
             self.view.set_syntax_file("Packages/JavaScript/JSON.tmLanguage")
 
 
+class PrettyJsonValidate(PrettyJsonBaseCommand):
+    def run(self, edit):
+        self.view.erase_regions('json_errors')
+        for region in self.view.sel():
+            # If no selection, use the entire file as the selection
+            if region.empty() and s.get("use_entire_file_if_no_selection", True):
+                selection = sublime.Region(0, self.view.size())
+                selected_entire_file = True
+            else:
+                selection = region
+
+            try:
+                obj = self.json_loads(self.view.substr(selection))
+                sublime.message_dialog("JSON is Valid")
+            except Exception:
+                self.show_exception()
+                sublime.message_dialog("Invalid JSON")
+
+
 class PrettyJsonCommand(PrettyJsonBaseCommand):
 
     """ Pretty Print JSON """